Casting-machine.



J. W. FURLOW.

CASTING MACHINE.

APPLICATION FILED 1113.24, 1912.

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J. W. FURLOW.

Y CASTING MAGHINB. APPLIUATION FILED fm.24,1912.

1,035,956. Patented Aug. 2o, 1912.

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JAMES v7. FURLOW, F LAOS ANGELES, CALIFORNIA.

CASTING-MACHINE.

Specication of Letters Patent.

Patented Aug. 2o, 1912.

Application led February 24, 1912. Serial No. 679,708.

objects of the .present invention is to produce a machine of thecharacter described in which the casting operation may be continuouslyrepeated withv great facility.

Another object of my invention is to produce a casting machine of thecharacter described in which the parts of the mold are retained in sucha manner that the same may be opened and closed with a minimum exertionof labor on the part of the operator.

Another object of my invention is to produce a casting machine of thecharacter described of simple form and construction.

Other objects and advantages will appear hereinafter from the followingspecification. Referring to the drawings, which are for illustrativepurposes only: igure 1 is a planv view, partly in section, of a` castingmachine embodying a form of my invention. Fig. 2 is a side elevation,partly lin section, of the device shown in Fig. 1. Fig. 3 is a frontelevation of the stationary mold member. Fig. 4 is a horizontal,sectional view on line :v4-? Fig. 3. Fig. 5 is a vertical, sectionalview on line :v5- m5 Fig. 3. Fi 6 is a front elevation of a modiiiedform lo mold' member. Fig. 7 is a horizontal, sectional view on line:aL-m7 Fig. 6.

The casting machine comprises a frame or stationary support consistingof upper longitudinal members 1 and 2 and lower longitudinal members 3and 4 supported on l suitable uprights 5, the uprights 5 bein connectedat their upper ends by means o cross pieces 6. The members just referredto comprising the frame may be made of any sultable material. In thepresent instance, the members comprising the frame consist of angleirons, thereby constituting a liglht construction of great strength.

T e mold consists of a stationary member 7 and a movable member 8. Thestationary member 7 consists of a body member 10 pro and flanges 12extending outwardly from the bodl member 10. Extending rearwardly om thebody member is a foot 13 adapted 'to -rest on the member 4 of the frameand to lbe secured thereto by means lof suitable bolts 14, therebysupporting the body member and the parts carr1ed thereby in a rigidposition on the frame of the castfing machine. The body member 10 of thestationary member 7 is provided with a head 15 havingV a recess 16formed inthe rear face thereof and flanges 17 extending outwardly'therefrom, which flanges 17 rest upon the anges 12 of the member 10,being secured thereto by( means of bolts 18. The member 10 and the head15, when secured together in the manner justl described, are

so arranged that the recess 16 lin the head 15 and the recess 11 in themember 10 register with` each other and form a cooling chamber 20. Thehead 15 is provided with a series of vertically disposed ribs 22 whichextend into the chamber for the purpose of providing a large surface topermit the quick radiation of heat from the head 15. The cooling of thehead 15 is accelerated by means of a stream of coldwater introduced intothe chamber 2O by means of a pipe 24 connected in any suitable manner toa water supply, which pi e 24 extends into the lower end of the cham er20 through the member 10 where it is-connectedto a longitudinallydisposed pipe 25 provided with a series o f Aperforations 26 throu hwhich the water is distributed into the ower portion ofthe' chamber 20.4The water passes upwardly between the ribs 22, becoming heated therefromand passing out of the chamber 20 through a perforated pipe 27longitudinally disposed within the upper portlon of the chamber 20,thence downwardly through pipe 28 to a pipe 29 which extends through thewalls of the -bod member 10 to lthe exterior thereof. The body member 10is 'also provided` with an ear 30 extending out` wardly from eachside'thereof for the -purpose of supporting a pair of rods 31, the otherend of the rods 31 being secured to the frame of the machine by suitablenuts 32.

n The movable mold member 8 is of the same general form and constructionas the member 7 and consists of a body member The body member 35 of thelmovable mold member 8 is provided with a pair of ears 40, each of whichis provided with a perforation adapted to be engaged by one of the rods31 in such a manner that the body member 35 is freely slidable on therods 3l. The rods 31 serve not only as supporting means for the movablemold member 8, but also serve as means for keeping the movable moldmember in alinement with the stationary mold member.

The movable mold member 8 is provided with a chamber 42 formed thereinin the same manner as the chamber 20 of the stationary mold member, andthe head 37 of the movable mold member is provided with a plurality ofvertically disposed ribs 43 of the same form and construction as thoseheretofore described as forming part of the head 15 of thestationary'mold member. The chamber 42 in the movable mold member 8 isprovided with a cooling means which consists of a flexible inlet pipe 45which introduces cold water into thelower portion of the chamber 42 bymeans of a distributing pipe of the same form and construction asthatheretofore described in the stationary mold member, chamber 42 beingalso provided with a flexible outlet pipe 46 for permitting the water inthe chamber 42 to flowv therefrom when the same has become heated fromthe parts of the mold member.

The mold isl formed in the heads 15 and 37, the adjacent faces of therespective heads each containing recesses e ual to half of thedepth orthickness of ttihe object to be cast. The mold, as shown, is made forthe purpose of casting sash weights of different lengt-hs. Recesses 50are lformed in the head 15, as indicated in Fig. 3, of a depth equal tohalf the thickness of the sash weight, openings or gates 51 being formedat the top of each recess 50 for the purpose of affording a pouringopening through which the molten metal is poured into the mold. Recesses52 are also shown formed in the face of the plate 15 which are adaptedto be used for the purpose of molding ordinary washers, an opening orgate 53 connecting the upper recess 52 with the lower recess 52, and anopening or gate 54 connecting the upper recess 52-with the open end ofthe head 15.

It is understood that the head 37 is providedwith recesses of the sameform as those heretofore described in the\head 15, which recessesregister with the recesses in the head 15 when the movable member 8 ismoved into the closed position against the stationary member 7, asindicated in Figs. 1 and 2. Vents or passages 56 are provided in theface of the heads 15 and 37, which vents connect 4at their inner endswith the respective recesses formed in the face of the plate and havingtheir outer ends extending to the edge of the plate 4for the purpose lofpermitting gases formed in the mold to escape to the exterior thereof.The upper edge ofthe heads is provided with a block 58 of re-clay orother suitable material, as indicated in Figs. 3 and 4, for the purposeof protecting the upper edge of the heads from'the melting action of themolten metal.

For the purpose of assisting in the registration of the mold members,the head 37 is provided with a tapered dowel pin 60 which extendsoutwardly therefrom, which pin 60 is adapted to engage a perforation 61formed in the head 15 when the mold member 8 is moved into closedposition against the member `7 v Means for operating the movable moldmember 8 on the rods 31 is provided and consists of a bell-crank lever65 pivotally mounted on a pin 66 which is supported between verticallydisposed members 67 form` ing part of the frame or support of themolding machine.. The bell-crank 65 consists of a handle 65 forming onearm thereof, the other arm 68 of the bell-crank being divided or splitas indicated in Fig. 1. Pivotally' mounted by means of a pin 69 in thelower end of arm 68of the bell-crank is a block 70 provided with aperforation 71 extending therethrough adapted to slid- -ably support theupper end of a rod 72, the inner movement of which rod is limited bymeans of a pin 73 in the end thereof. The lower end of the rod 72 ispivoted to a bracket 74 secured by means of bolts 75 to the body member35 of the movable mold member 8. The lower ends of the split arln 68 ofthe bell-crank are each provided with a rounded face 77 adapted toslidably engage against a washer 78 vmounted on the rod72, a similarwasher 79 being mounted on the rod 72 at the lower end thereof andadapted to bear against a bracket 74 heretofore described. f v

lMountedon the rod 72 between the washers 78 and 79 is a coil spring 80,one end of which abuts against the washer 78 and the other end of whichabuts against ,the washer 79. f

The operation of the casting machine is as follows: The position of theparts of the machine, as shown in Figs. 1 and 2, illus-v trat'e themachine at the time when the mold is in'closed position and ready to bepoured, the molten metal being poured between the blocks 58 offire-brick in the upper end of the mold and passingdownwardly throughthe respective gates 51 and 54 into the molds formed by the recesses50and 52 respectively in the faces of the heads 15 and 37. The moltenmetal when so poured is quickly chilledv by the cooling action of thevflowing water through the chamber 11 in the stational'y mold member 7and the chamber 42 in the movable mold member 8, which action takesplace so rapidly that the mold may bel opened permitting the moldedarticles to operation of pouring repeated. The open! ing of the mold isaccomplished by' moving the handle 65 of the bell-crank 65 upwardly,which a'ction swings the splitl arm 68 of the bell-crank downwardlyuntil the pin 73 in the rod 72 is engaged by the block 70. The continuedupward movement of the handle 67 pulls the rod 72 rearwardly, therebysliding the movable mold member 8 away from the stationar The closingofthe mol is performed by moving the handle member 67 downwardly, whichaction causesv the rounded faces 77 of the lower end of the split arm 68to press against the washer 78 on the rod 7 2, thereby compressing thespring 80 which. exerts force against the washer 79 from which the forceso exerted is transmitted to the bracket 74 .on the movable mold member8 'in such a manner that the mold member 8 is moved forwardly againstthe stationary member 7.

. A stop 82 is mounted on the frame of the machine in such a` positionthat the downward movement of the handle 67 in closing the mold isarrested at a point where the block 70 is above a straight line betweenthe pivot 66 of the bell-crank 65 and the pivotal point of the lower endof the rod 72, in which position the spring 80 being under compressionnot only exerts a pressurev aga-inst the washer 79 to hold the movablemold member 8 against the stationary member 7, but also exerts apressure agalnst the washer 78 which is transmitted to the lower end ofthe s lit arm 68 at a point above a straight line etween the pivotalpoint 66 of the bell-crank and the pivotal point of the lower end of therod 72, which action of the spring holds the handle 67 against the stop82 and prevents openin of the mold until the handle 67 is manual y movedupwardly.

In the form of mold members shown in Figs. 1 to 5 inclusive, the heads15 and 37 are made of an suitable metal which is best adapted to witstand the action of the molten metal.

In the modified form shown in Figs. 6 and 7 the head 85, which may besecured to and become a part of either the movable mold member or thestationa member, is provided with a recess 86 ormed in the face thereof,which recess is illed with a composition of molders sand or othersuitable material in which the mold recess 87 is formed,

mold member 7. v

stand the action of the molten metal may be employed so that the sandmay be used for repeated casting operations.

What I claim is 1. A casting machine comprising a support, a stationarymold member, a pair of rods supported on said stationary member and saidsupport, a movable mold member slidably supported 'on said rods, a leverpivotally mounted on said support, a block pivotally mounted in one endof said lever, a rod slidably mounted in said block, means for limitingthe sliding movement of said rod in said block, means for pivotallyconnecting said rod to said movable mold member, elastic compressionmeans on said rod between said lever and said movable mold member, andmeans for operating said lever to slide said movable mold member on saidiirst named rods toward and from said stationary member.

2. A casting machine comprising a support, a stationary mold member, apair of rods su ported on said stationary member and said support amovable mold member slidably supported on said rods, a lever pivotallymounted on said support, said lever having a divided end, a blockpivotally mounted in vsaid divided end, a rod slidably mounted in saidblock, a bracket, on said movable mold member, means for ivotallymounting the inner end of said ro in said bracket, a pin in the outerend of said rod to limit the movement of said rod in said block, acoiled spring on said rod, a washer on said rod between one end of saidspring and said block, a washer on said rod between the other end ofsaid spring and said bracket, handle means onsaid lever, and means onsaid support to limit the movement of said lever.

3. A casting machine comprising a support, a stationary mold member, apair of rods su 1ported onsaid stationary member. a movag e mold memberslidably supported on said rods, a lever pivotally' mounted on saidframe, a rod ivotallymounted on said movable member aving one endslidably connected to said lever, means for limiting the slidingmovement of said rod, elastic compression means on said last named rodbetween said lever and movable member, and means for operating saidlever to slide said movable member toward and from said stationarymember.

. In testimony whereof, I have hereunto set my hand at Los Angeles,Ca1ifornia,'this 14th day of February, 1912.

' JAMES W. FURLOW. In presence of- Loms W. GnA'rz,

FRANK L.' A. GRAHAM.

" p :en

